CM
BLDR icon

CastleKnight Management’s Builders FirstSource BLDR Stock Holding History

CastleKnight Management’s Portfolio BLDR Stock Details BLDR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q2 		– Sell
-10,000
Closed -$1.25M – 437
2025
Q1 		$1.25M Buy
+10,000
New +$1.45M 0.05% 198

Other funds holding BLDR

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Sands Capital Management
Sands Capital Management Arlington, Virginia $25.5B AUM 26.46% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
BWA
Brave Warrior Advisors New York $4.04B AUM 1.15% 1-Year Est. Return

CastleKnight Management's BLDR Position: Q4 2025 in Review

CastleKnight Management sold out of Builders FirstSource (BLDR) in Q4 2025, closing a stake of 2,800 shares — an estimated $340K sold.

CastleKnight Management first reported a position in BLDR in Q1 2022 and held it in 4 quarters. The position peaked at $2.22M in Q1 2022. 765 funds tracked by Wall St. Rank hold BLDR as of Q4 2025.

  • CastleKnight Management reported no remaining Builders FirstSource position as of Q4 2025 after selling out during the quarter.
  • CastleKnight Management sold 2,800 Builders FirstSource shares in Q4 2025, an estimated $340K.
  • CastleKnight Management first reported a position in Builders FirstSource in Q1 2022 and held it in 4 quarters.
  • CastleKnight Management's Builders FirstSource position peaked at $2.22M in Q1 2022.
  • 765 funds tracked by Wall St. Rank held Builders FirstSource as of Q4 2025.

Based on CastleKnight Management's 13F filing for Q4 2025, filed 17 Feb 2026.